60721588 has 12 divisors (see below), whose sum is σ = 109135012. Its totient is φ = 29540160.

The previous prime is 60721579. The next prime is 60721589. The reversal of 60721588 is 88512706.

It can be written as a sum of positive squares in 2 ways, for example, as 55532304 + 5189284 = 7452^2 + 2278^2 .

It is a super-2 number, since 2×60721588² = 7374222498483488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60721589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204993 + ... + 205288.

Almost surely, 2^60721588 is an apocalyptic number.

It is an amenable number.

60721588 is a deficient number, since it is larger than the sum of its proper divisors (48413424).

60721588 is a wasteful number, since it uses less digits than its factorization.

60721588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410322 (or 410320 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 60721588 is about 7792.4057902550. The cubic root of 60721588 is about 393.0499152090.

The spelling of 60721588 in words is "sixty million, seven hundred twenty-one thousand, five hundred eighty-eight".